You can make these car repairs yourself

March 26, 2013 |Popular Mechanics

The complexity of modern vehicles makes some projects a no-go for newbies. But, experts say, there are still plenty of auto DIY projects, like these, for weekend warriors.

Popular Mechanics

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Replacing the Thermostat

If your engine is overheating or is slow to warm up, your thermostat could be either stuck shut or stuck open. Replacing the thermostat can be a straightforward job that won't require draining all of the engine coolant. In the vast majority of cars, you'll find the thermostat where the top radiator hose goes into the engine.

Look for two or three bolts holding the thermostat housing in place beside the entry point. Before detaching the radiator hose so you can put a wrench on the bolts, place a pan or bucket below the engine—you're likely to spill some coolant. After unbolting the old thermostat, check to ensure that the replacement gasket is a perfect match for the old one. One more thing: On some of the older cars you could put the thermostat in upside down. Nowadays, most of them have designs that prevent them from going in upside-down.

Popular Mechanics

7of11

Replacing the Thermostat

If your engine is overheating or is slow to warm up, your thermostat could be either stuck shut or stuck open. Replacing the thermostat can be a straightforward job that won't require draining all of the engine coolant. In the vast majority of cars, you'll find the thermostat where the top radiator hose goes into the engine.

Look for two or three bolts holding the thermostat housing in place beside the entry point. Before detaching the radiator hose so you can put a wrench on the bolts, place a pan or bucket below the engine—you're likely to spill some coolant. After unbolting the old thermostat, check to ensure that the replacement gasket is a perfect match for the old one. One more thing: On some of the older cars you could put the thermostat in upside down. Nowadays, most of them have designs that prevent them from going in upside-down.